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Pie
2 years ago
15

What is the value of the expression below when x=10x=10 and y=4y=4? 8x-7y 8x−7y

Mathematics
1 answer:
saveliy_v [14]2 years ago
7 0

Answer:

Step-by-step explanation:

8(10) - 7(4)

8X10 - 7X4

80 - 28

52

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See attached drawing.

For interval notation since x can be any number less than or equal to -5/2 it would be written as (-∞, -5/2]

8 0
3 years ago
Evaluate the degree of the polynomial (y3 – 2) ( y2 + 11), expand using algebraic expressions and answer.
posledela

Answer:

y^5+11y^3-2y^3-22

Step-by-step explanation:

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3 years ago
PLEASE HELP 10 POINTS
Sidana [21]

Answer:

8.1 gallons

Step-by-step explanation:

Setup a proportion

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3 years ago
What is 779,000,000 in scientific notation
DIA [1.3K]

Answer:

799 x 10^6

Hope this helps

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4 0
3 years ago
What are the numerical measures of each angle in the diagram? 1 and 3 measure degrees. 2 and 4 measure degrees. (3x - 1)º (2x +
Tanya [424]

Answer:

Step-by-step explanation:

In the diagram shown, the measure of angle 1 is oppositely directed to angle 2 and oppositely directed angles are equal.

Hence <1 = <3

Given < 1 = 3x-1 and <3 = 2x+9

Hence 3x-1 =  2x+9

collect like terms

3x-2x = 9+1

x = 10°

Since <1 = 3x-1

on substituting x = 10

<1 = 3(10)-1

<1 = 30-1

<1 = 29°

<1+<2 = 180 (angle on a straight line)

29+<2 = 180

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<2 = 151°

Similarly, on substituting x = 10 into <3

<3 = 2x+9

<3 = 2(10)+9

<3 = 20+9

<3 = 29°

<3+<4 = 180 (angle on a straight line)

29+<4 = 180

<4 = 180-29

<4 = 151°

3 0
3 years ago
Read 2 more answers
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